Resources Contact Us Home
Control apparatus of internal combustion engine

Image Number 15 for United States Patent #7284367.

The ignition timing is sustained at an initial value during a predetermined time beginning at a start of an engine, and is retarded after the predetermined time is elapsed to heat a catalyst at an early time. The predetermined time ends when the negative pressure of an intake pipe or the negative pressure of a brake booster reaches to a predetermined value. That is, the predetermined time is a period, which begins at a start of the engine and ends when a proper negative pressure can be sustained in the brake booster. As a result, it is possible to assure a negative pressure in the brake booster at an early time and to reduce exhaust emission at a start of the engine simultaneously.

  Recently Added Patents
System and method for conditionally sending a request for data to a home node
Apparatus and sensor for adjusting vertical sensor-alignment
System and method for creating, managing and trading hedge portfolios
Method and structure for adding mass with stress isolation to MEMS structures
Mobile communication method, mobile station, and network device
2-aryl-4-quinazolinones and their pharmaceutical compositions
  Randomly Featured Patents
Signal processing apparatus and method, and data recording/reproducing apparatus using the same
Cell/carrier redirecting and reverting control at the time of RRC connection
Attenuator circuit of a capacitance-sensing circuit
Filler metal for use in welding of Ni-Cr-W alloys
Device and method for the detection of an analyte utilizing mesoscale flow systems
Safety valve
Semiconductor device manufacturing method and ion implanter used therein
Spindle motor and complex bearing assembly for use with the spindle motor
Image representation system and method for vehicles
Method of packaging and system therefor